mirror of
https://github.com/opencontainers/runc.git
synced 2026-07-11 06:03:57 +08:00
Aleksa Sarai
dc0c6d0163
When reading mount errors, it is quite hard to make sense of mount flags
in their hex form. As this is the error path, the minor performance
impact of constructing a string is probably not worth hyper-optimising.
(cherry pick from commit 30302a2850)
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
55 lines
2.3 KiB
Go
55 lines
2.3 KiB
Go
package libcontainer
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func TestStringifyMountFlags(t *testing.T) {
|
|
for _, test := range []struct {
|
|
name string
|
|
flags uintptr
|
|
expected string
|
|
}{
|
|
{"Empty", 0, ""},
|
|
// Single valid flags.
|
|
{"Single-MS_RDONLY", unix.MS_RDONLY, "MS_RDONLY"},
|
|
{"Single-MS_NOSUID", unix.MS_NOSUID, "MS_NOSUID"},
|
|
{"Single-MS_NODEV", unix.MS_NODEV, "MS_NODEV"},
|
|
{"Single-MS_NOEXEC", unix.MS_NOEXEC, "MS_NOEXEC"},
|
|
{"Single-MS_SYNCHRONOUS", unix.MS_SYNCHRONOUS, "MS_SYNCHRONOUS"},
|
|
{"Single-MS_REMOUNT", unix.MS_REMOUNT, "MS_REMOUNT"},
|
|
{"Single-MS_MANDLOCK", unix.MS_MANDLOCK, "MS_MANDLOCK"},
|
|
{"Single-MS_DIRSYNC", unix.MS_DIRSYNC, "MS_DIRSYNC"},
|
|
{"Single-MS_NOSYMFOLLOW", unix.MS_NOSYMFOLLOW, "MS_NOSYMFOLLOW"},
|
|
{"Single-MS_NOATIME", unix.MS_NOATIME, "MS_NOATIME"},
|
|
{"Single-MS_NODIRATIME", unix.MS_NODIRATIME, "MS_NODIRATIME"},
|
|
{"Single-MS_BIND", unix.MS_BIND, "MS_BIND"},
|
|
{"Single-MS_MOVE", unix.MS_MOVE, "MS_MOVE"},
|
|
{"Single-MS_REC", unix.MS_REC, "MS_REC"},
|
|
{"Single-MS_SILENT", unix.MS_SILENT, "MS_SILENT"},
|
|
{"Single-MS_POSIXACL", unix.MS_POSIXACL, "MS_POSIXACL"},
|
|
{"Single-MS_UNBINDABLE", unix.MS_UNBINDABLE, "MS_UNBINDABLE"},
|
|
{"Single-MS_PRIVATE", unix.MS_PRIVATE, "MS_PRIVATE"},
|
|
{"Single-MS_SLAVE", unix.MS_SLAVE, "MS_SLAVE"},
|
|
{"Single-MS_SHARED", unix.MS_SHARED, "MS_SHARED"},
|
|
{"Single-MS_RELATIME", unix.MS_RELATIME, "MS_RELATIME"},
|
|
{"Single-MS_KERNMOUNT", unix.MS_KERNMOUNT, "0x400000"},
|
|
{"Single-MS_I_VERSION", unix.MS_I_VERSION, "MS_I_VERSION"},
|
|
{"Single-MS_STRICTATIME", unix.MS_STRICTATIME, "MS_STRICTATIME"},
|
|
{"Single-MS_LAZYTIME", unix.MS_LAZYTIME, "MS_LAZYTIME"},
|
|
// Invalid flag value.
|
|
{"Unknown-512", 1 << 9, "0x200"},
|
|
// Multiple flag values at the same time.
|
|
{"Multiple-Valid1", unix.MS_RDONLY | unix.MS_REC | unix.MS_BIND, "MS_RDONLY|MS_BIND|MS_REC"},
|
|
{"Multiple-Valid2", unix.MS_NOSUID | unix.MS_NODEV | unix.MS_NOEXEC | unix.MS_REC | unix.MS_NODIRATIME | unix.MS_I_VERSION, "MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_NODIRATIME|MS_REC|MS_I_VERSION"},
|
|
{"Multiple-Mixed", unix.MS_REC | unix.MS_BIND | (1 << 9) | (1 << 31), "MS_BIND|MS_REC|0x80000200"},
|
|
} {
|
|
got := stringifyMountFlags(test.flags)
|
|
if got != test.expected {
|
|
t.Errorf("%s: stringifyMountFlags(0x%x) = %q, expected %q", test.name, test.flags, got, test.expected)
|
|
}
|
|
}
|
|
}
|